Support configuration of reporters in DSL

[nulls]

What's done:

• extended DiktatExtension to support configuration of reporters in DSL
• supported json, checkstyle, html, sarif and plain as function to configure in extensions
• now mergeDiktatReports depends only to diktatCheck (previously it depended to diktatFix too)
• now diktat gradle plugin supports multiple reporters

It closes #1801

[github-actions[bot]]

JUnit Tests (macOS, EnricoMi/publish-unit-test-result-action@v2)

   164 files   - 1     164 suites   - 1   9m 26s :stopwatch: + 2m 13s 1 393 tests  - 2  1 357 :heavy_check_mark:  - 2  36 :zzz: ±0  0 :x: ±0  2 772 runs   - 2  2 736 :heavy_check_mark:  - 2  36 :zzz: ±0  0 :x: ±0 

Results for commit 37f7420e. ± Comparison against base commit 81a74293.

This pull request removes 2 tests.

``` com.saveourtool.diktat.plugin.gradle.DiktatGradlePluginTest ‑ check default reporter type value() com.saveourtool.diktat.plugin.gradle.ReporterSelectionTest ‑ should fallback to plain reporter for unknown reporter types() ```

:recycle: This comment has been updated with latest results.

[github-actions[bot]]

JUnit Tests (Windows, EnricoMi/publish-unit-test-result-action@v2)

   164 files   - 1     164 suites   - 1   7m 5s :stopwatch: +8s 1 393 tests  - 2  1 376 :heavy_check_mark:  - 2  17 :zzz: ±0  0 :x: ±0  2 772 runs   - 2  2 755 :heavy_check_mark:  - 2  17 :zzz: ±0  0 :x: ±0 

Results for commit 37f7420e. ± Comparison against base commit 81a74293.

This pull request removes 2 tests.

``` com.saveourtool.diktat.plugin.gradle.DiktatGradlePluginTest ‑ check default reporter type value() com.saveourtool.diktat.plugin.gradle.ReporterSelectionTest ‑ should fallback to plain reporter for unknown reporter types() ```

:recycle: This comment has been updated with latest results.

[codecov[bot]]

Codecov Report

Attention: 50 lines in your changes are missing coverage. Please review.

Comparison is base (81a7429) 78.33% compared to head (37f7420) 78.39%.

Files	Patch %	Lines
.../diktat/plugin/gradle/extension/DefaultReporter.kt	79.59%	10 Missing :warning:
...urtool/diktat/plugin/gradle/extension/Reporters.kt	57.14%	9 Missing :warning:
...ourtool/diktat/ktlint/DiktatReporterFactoryImpl.kt	0.00%	9 Missing :warning:
.../saveourtool/diktat/plugin/maven/DiktatBaseMojo.kt	0.00%	8 Missing :warning:
...lin/com/saveourtool/diktat/cli/DiktatProperties.kt	0.00%	7 Missing :warning:
...diktat/plugin/gradle/tasks/SarifReportMergeTask.kt	50.00%	6 Missing :warning:
...rtool/diktat/plugin/gradle/tasks/DiktatTaskBase.kt	96.42%	0 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1808 +/- ## ============================================ + Coverage 78.33% 78.39% +0.06% - Complexity 2421 2432 +11 ============================================ Files 126 128 +2 Lines 8488 8578 +90 Branches 2152 2151 -1 ============================================ + Hits 6649 6725 +76 - Misses 879 893 +14 Partials 960 960 ```

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